355 lines
11 KiB
C
355 lines
11 KiB
C
/*
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** asm-m68k/amigahw.h -- This header defines some macros and pointers for
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** the various Amiga custom hardware registers.
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** The naming conventions used here conform to those
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** used in the Amiga Hardware Reference Manual, 3rd Edition
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**
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** Copyright 1992 by Greg Harp
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**
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** This file is subject to the terms and conditions of the GNU General Public
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** License. See the file COPYING in the main directory of this archive
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** for more details.
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**
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** Created: 9/24/92 by Greg Harp
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*/
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#ifndef _M68K_AMIGAHW_H
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#define _M68K_AMIGAHW_H
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#include <linux/ioport.h>
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/*
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* Different Amiga models
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*/
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extern unsigned long amiga_model;
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#define AMI_UNKNOWN (0)
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#define AMI_500 (1)
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#define AMI_500PLUS (2)
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#define AMI_600 (3)
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#define AMI_1000 (4)
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#define AMI_1200 (5)
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#define AMI_2000 (6)
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#define AMI_2500 (7)
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#define AMI_3000 (8)
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#define AMI_3000T (9)
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#define AMI_3000PLUS (10)
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#define AMI_4000 (11)
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#define AMI_4000T (12)
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#define AMI_CDTV (13)
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#define AMI_CD32 (14)
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#define AMI_DRACO (15)
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/*
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* Chipsets
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*/
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extern unsigned long amiga_chipset;
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#define CS_STONEAGE (0)
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#define CS_OCS (1)
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#define CS_ECS (2)
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#define CS_AGA (3)
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/*
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* Miscellaneous
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*/
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extern unsigned long amiga_eclock; /* 700 kHz E Peripheral Clock */
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extern unsigned long amiga_masterclock; /* 28 MHz Master Clock */
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extern unsigned long amiga_colorclock; /* 3.5 MHz Color Clock */
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extern unsigned long amiga_chip_size; /* Chip RAM Size (bytes) */
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extern unsigned char amiga_vblank; /* VBLANK Frequency */
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extern unsigned char amiga_psfreq; /* Power Supply Frequency */
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#define AMIGAHW_DECLARE(name) unsigned name : 1
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#define AMIGAHW_SET(name) (amiga_hw_present.name = 1)
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#define AMIGAHW_PRESENT(name) (amiga_hw_present.name)
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struct amiga_hw_present {
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/* video hardware */
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AMIGAHW_DECLARE(AMI_VIDEO); /* Amiga Video */
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AMIGAHW_DECLARE(AMI_BLITTER); /* Amiga Blitter */
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AMIGAHW_DECLARE(AMBER_FF); /* Amber Flicker Fixer */
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/* sound hardware */
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AMIGAHW_DECLARE(AMI_AUDIO); /* Amiga Audio */
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/* disk storage interfaces */
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AMIGAHW_DECLARE(AMI_FLOPPY); /* Amiga Floppy */
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AMIGAHW_DECLARE(A3000_SCSI); /* SCSI (wd33c93, A3000 alike) */
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AMIGAHW_DECLARE(A4000_SCSI); /* SCSI (ncr53c710, A4000T alike) */
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AMIGAHW_DECLARE(A1200_IDE); /* IDE (A1200 alike) */
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AMIGAHW_DECLARE(A4000_IDE); /* IDE (A4000 alike) */
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AMIGAHW_DECLARE(CD_ROM); /* CD ROM drive */
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/* other I/O hardware */
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AMIGAHW_DECLARE(AMI_KEYBOARD); /* Amiga Keyboard */
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AMIGAHW_DECLARE(AMI_MOUSE); /* Amiga Mouse */
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AMIGAHW_DECLARE(AMI_SERIAL); /* Amiga Serial */
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AMIGAHW_DECLARE(AMI_PARALLEL); /* Amiga Parallel */
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/* real time clocks */
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AMIGAHW_DECLARE(A2000_CLK); /* Hardware Clock (A2000 alike) */
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AMIGAHW_DECLARE(A3000_CLK); /* Hardware Clock (A3000 alike) */
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/* supporting hardware */
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AMIGAHW_DECLARE(CHIP_RAM); /* Chip RAM */
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AMIGAHW_DECLARE(PAULA); /* Paula (8364) */
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AMIGAHW_DECLARE(DENISE); /* Denise (8362) */
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AMIGAHW_DECLARE(DENISE_HR); /* Denise (8373) */
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AMIGAHW_DECLARE(LISA); /* Lisa (8375) */
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AMIGAHW_DECLARE(AGNUS_PAL); /* Normal/Fat PAL Agnus (8367/8371) */
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AMIGAHW_DECLARE(AGNUS_NTSC); /* Normal/Fat NTSC Agnus (8361/8370) */
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AMIGAHW_DECLARE(AGNUS_HR_PAL); /* Fat Hires PAL Agnus (8372) */
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AMIGAHW_DECLARE(AGNUS_HR_NTSC); /* Fat Hires NTSC Agnus (8372) */
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AMIGAHW_DECLARE(ALICE_PAL); /* PAL Alice (8374) */
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AMIGAHW_DECLARE(ALICE_NTSC); /* NTSC Alice (8374) */
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AMIGAHW_DECLARE(MAGIC_REKICK); /* A3000 Magic Hard Rekick */
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AMIGAHW_DECLARE(PCMCIA); /* PCMCIA Slot */
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AMIGAHW_DECLARE(GG2_ISA); /* GG2 Zorro2ISA Bridge */
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AMIGAHW_DECLARE(ZORRO); /* Zorro AutoConfig */
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AMIGAHW_DECLARE(ZORRO3); /* Zorro III */
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};
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extern struct amiga_hw_present amiga_hw_present;
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struct CUSTOM {
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unsigned short bltddat;
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unsigned short dmaconr;
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unsigned short vposr;
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unsigned short vhposr;
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unsigned short dskdatr;
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unsigned short joy0dat;
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unsigned short joy1dat;
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unsigned short clxdat;
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unsigned short adkconr;
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unsigned short pot0dat;
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unsigned short pot1dat;
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unsigned short potgor;
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unsigned short serdatr;
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unsigned short dskbytr;
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unsigned short intenar;
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unsigned short intreqr;
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unsigned char *dskptr;
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unsigned short dsklen;
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unsigned short dskdat;
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unsigned short refptr;
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unsigned short vposw;
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unsigned short vhposw;
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unsigned short copcon;
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unsigned short serdat;
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unsigned short serper;
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unsigned short potgo;
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unsigned short joytest;
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unsigned short strequ;
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unsigned short strvbl;
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unsigned short strhor;
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unsigned short strlong;
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unsigned short bltcon0;
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unsigned short bltcon1;
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unsigned short bltafwm;
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unsigned short bltalwm;
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unsigned char *bltcpt;
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unsigned char *bltbpt;
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unsigned char *bltapt;
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unsigned char *bltdpt;
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unsigned short bltsize;
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unsigned char pad2d;
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unsigned char bltcon0l;
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unsigned short bltsizv;
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unsigned short bltsizh;
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unsigned short bltcmod;
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unsigned short bltbmod;
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unsigned short bltamod;
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unsigned short bltdmod;
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unsigned short spare2[4];
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unsigned short bltcdat;
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unsigned short bltbdat;
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unsigned short bltadat;
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unsigned short spare3[3];
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unsigned short deniseid;
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unsigned short dsksync;
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unsigned short *cop1lc;
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unsigned short *cop2lc;
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unsigned short copjmp1;
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unsigned short copjmp2;
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unsigned short copins;
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unsigned short diwstrt;
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unsigned short diwstop;
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unsigned short ddfstrt;
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unsigned short ddfstop;
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unsigned short dmacon;
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unsigned short clxcon;
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unsigned short intena;
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unsigned short intreq;
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unsigned short adkcon;
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struct {
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unsigned short *audlc;
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unsigned short audlen;
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unsigned short audper;
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unsigned short audvol;
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unsigned short auddat;
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unsigned short audspare[2];
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} aud[4];
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unsigned char *bplpt[8];
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unsigned short bplcon0;
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unsigned short bplcon1;
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unsigned short bplcon2;
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unsigned short bplcon3;
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unsigned short bpl1mod;
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unsigned short bpl2mod;
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unsigned short bplcon4;
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unsigned short clxcon2;
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unsigned short bpldat[8];
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unsigned char *sprpt[8];
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struct {
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unsigned short pos;
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unsigned short ctl;
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unsigned short dataa;
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unsigned short datab;
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} spr[8];
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unsigned short color[32];
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unsigned short htotal;
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unsigned short hsstop;
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unsigned short hbstrt;
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unsigned short hbstop;
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unsigned short vtotal;
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unsigned short vsstop;
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unsigned short vbstrt;
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unsigned short vbstop;
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unsigned short sprhstrt;
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unsigned short sprhstop;
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unsigned short bplhstrt;
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unsigned short bplhstop;
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unsigned short hhposw;
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unsigned short hhposr;
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unsigned short beamcon0;
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unsigned short hsstrt;
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unsigned short vsstrt;
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unsigned short hcenter;
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unsigned short diwhigh;
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unsigned short spare4[11];
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unsigned short fmode;
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};
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/*
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* DMA register bits
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*/
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#define DMAF_SETCLR (0x8000)
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#define DMAF_AUD0 (0x0001)
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#define DMAF_AUD1 (0x0002)
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#define DMAF_AUD2 (0x0004)
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#define DMAF_AUD3 (0x0008)
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#define DMAF_DISK (0x0010)
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#define DMAF_SPRITE (0x0020)
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#define DMAF_BLITTER (0x0040)
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#define DMAF_COPPER (0x0080)
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#define DMAF_RASTER (0x0100)
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#define DMAF_MASTER (0x0200)
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#define DMAF_BLITHOG (0x0400)
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#define DMAF_BLTNZERO (0x2000)
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#define DMAF_BLTDONE (0x4000)
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#define DMAF_ALL (0x01FF)
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struct CIA {
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unsigned char pra; char pad0[0xff];
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unsigned char prb; char pad1[0xff];
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unsigned char ddra; char pad2[0xff];
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unsigned char ddrb; char pad3[0xff];
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unsigned char talo; char pad4[0xff];
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unsigned char tahi; char pad5[0xff];
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unsigned char tblo; char pad6[0xff];
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unsigned char tbhi; char pad7[0xff];
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unsigned char todlo; char pad8[0xff];
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unsigned char todmid; char pad9[0xff];
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unsigned char todhi; char pada[0x1ff];
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unsigned char sdr; char padb[0xff];
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unsigned char icr; char padc[0xff];
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unsigned char cra; char padd[0xff];
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unsigned char crb; char pade[0xff];
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};
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#define zTwoBase (0x80000000)
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#define ZTWO_PADDR(x) (((unsigned long)(x))-zTwoBase)
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#define ZTWO_VADDR(x) (((unsigned long)(x))+zTwoBase)
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#define CUSTOM_PHYSADDR (0xdff000)
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#define amiga_custom ((*(volatile struct CUSTOM *)(zTwoBase+CUSTOM_PHYSADDR)))
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#define CIAA_PHYSADDR (0xbfe001)
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#define CIAB_PHYSADDR (0xbfd000)
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#define ciaa ((*(volatile struct CIA *)(zTwoBase + CIAA_PHYSADDR)))
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#define ciab ((*(volatile struct CIA *)(zTwoBase + CIAB_PHYSADDR)))
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#define CHIP_PHYSADDR (0x000000)
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void amiga_chip_init (void);
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void *amiga_chip_alloc(unsigned long size, const char *name);
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void *amiga_chip_alloc_res(unsigned long size, struct resource *res);
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void amiga_chip_free(void *ptr);
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unsigned long amiga_chip_avail( void ); /*MILAN*/
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extern volatile unsigned short amiga_audio_min_period;
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static inline void amifb_video_off(void)
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{
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if (amiga_chipset == CS_ECS || amiga_chipset == CS_AGA) {
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/* program Denise/Lisa for a higher maximum play rate */
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amiga_custom.htotal = 113; /* 31 kHz */
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amiga_custom.vtotal = 223; /* 70 Hz */
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amiga_custom.beamcon0 = 0x4390; /* HARDDIS, VAR{BEAM,VSY,HSY,CSY}EN */
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/* suspend the monitor */
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amiga_custom.hsstrt = amiga_custom.hsstop = 116;
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amiga_custom.vsstrt = amiga_custom.vsstop = 226;
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amiga_audio_min_period = 57;
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}
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}
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struct tod3000 {
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unsigned int :28, second2:4; /* lower digit */
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unsigned int :28, second1:4; /* upper digit */
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unsigned int :28, minute2:4; /* lower digit */
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unsigned int :28, minute1:4; /* upper digit */
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unsigned int :28, hour2:4; /* lower digit */
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unsigned int :28, hour1:4; /* upper digit */
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unsigned int :28, weekday:4;
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unsigned int :28, day2:4; /* lower digit */
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unsigned int :28, day1:4; /* upper digit */
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unsigned int :28, month2:4; /* lower digit */
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unsigned int :28, month1:4; /* upper digit */
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unsigned int :28, year2:4; /* lower digit */
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unsigned int :28, year1:4; /* upper digit */
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unsigned int :28, cntrl1:4; /* control-byte 1 */
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unsigned int :28, cntrl2:4; /* control-byte 2 */
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unsigned int :28, cntrl3:4; /* control-byte 3 */
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};
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#define TOD3000_CNTRL1_HOLD 0
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#define TOD3000_CNTRL1_FREE 9
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#define tod_3000 ((*(volatile struct tod3000 *)(zTwoBase+0xDC0000)))
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struct tod2000 {
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unsigned int :28, second2:4; /* lower digit */
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unsigned int :28, second1:4; /* upper digit */
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unsigned int :28, minute2:4; /* lower digit */
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unsigned int :28, minute1:4; /* upper digit */
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unsigned int :28, hour2:4; /* lower digit */
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unsigned int :28, hour1:4; /* upper digit */
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unsigned int :28, day2:4; /* lower digit */
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unsigned int :28, day1:4; /* upper digit */
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unsigned int :28, month2:4; /* lower digit */
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unsigned int :28, month1:4; /* upper digit */
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unsigned int :28, year2:4; /* lower digit */
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unsigned int :28, year1:4; /* upper digit */
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unsigned int :28, weekday:4;
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unsigned int :28, cntrl1:4; /* control-byte 1 */
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unsigned int :28, cntrl2:4; /* control-byte 2 */
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unsigned int :28, cntrl3:4; /* control-byte 3 */
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};
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#define TOD2000_CNTRL1_HOLD (1<<0)
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#define TOD2000_CNTRL1_BUSY (1<<1)
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#define TOD2000_CNTRL3_24HMODE (1<<2)
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#define TOD2000_HOUR1_PM (1<<2)
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#define tod_2000 ((*(volatile struct tod2000 *)(zTwoBase+0xDC0000)))
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#endif /* _M68K_AMIGAHW_H */
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